封装HttpClient工具类；转载请标明出处

来源：互联网发布：wildfly 端口配置编辑：程序博客网时间：2024/05/16 06:30
/** * Created by sunlei on 2016/12/24 0024. */import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.config.CookieSpecs;import org.apache.http.client.config.RequestConfig;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.config.Registry;import org.apache.http.config.RegistryBuilder;import org.apache.http.conn.socket.ConnectionSocketFactory;import org.apache.http.conn.socket.PlainConnectionSocketFactory;import org.apache.http.conn.ssl.NoopHostnameVerifier;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.impl.client.LaxRedirectStrategy;import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;import org.apache.http.message.BasicNameValuePair;import org.apache.http.ssl.SSLContextBuilder;import org.apache.http.ssl.TrustStrategy;import org.apache.http.util.EntityUtils;import javax.net.ssl.SSLContext;import java.io.IOException;import java.nio.charset.Charset;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import java.util.ArrayList;import java.util.List;import java.util.Map;/** *  封装httpCilent请求,基于httpClient4.5.2开发 *  HTTP请求工具类 */public  class HttpUtil {    private static PoolingHttpClientConnectionManager connectionManager;    private static RequestConfig requestConfig;    private static final int MAX_TIMEOUT = 5 * 1000;    /**----------静态模块加载，主要是设置HttpClient的一些属性----------*/    static {        //注册http和https        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory> create()                .register("http", PlainConnectionSocketFactory.INSTANCE).register("https", createSSLConnectionSocketFactory()).build();        //设置连接池        connectionManager = new PoolingHttpClientConnectionManager(socketFactoryRegistry);        //设置连接池大小        connectionManager.setMaxTotal(100);        connectionManager.setDefaultMaxPerRoute(100);   //(同一个路由允许最大连接数)        RequestConfig.Builder configBuilder = RequestConfig.custom();        //设置连接超时        configBuilder.setConnectTimeout(MAX_TIMEOUT);        //设置读取超时        configBuilder.setSocketTimeout(MAX_TIMEOUT);        //设置从连接池获取连接实例的超时        configBuilder.setConnectionRequestTimeout(MAX_TIMEOUT);        //此处使用默认的Cookie规范，可以让后续请求共享Cookie        configBuilder.setCookieSpec(CookieSpecs.DEFAULT);        //支持重定向        configBuilder.setRedirectsEnabled(true);        requestConfig = configBuilder.build();        HttpClients.custom()                .setConnectionManager(connectionManager)                .setDefaultRequestConfig(requestConfig)                .setRedirectStrategy(new LaxRedirectStrategy())                .setSSLSocketFactory(createSSLConnectionSocketFactory())    //设置证书//                .setProxy(new HttpHost("127.0.0.1",8888))     //设置走代理 方便Fiddler查看抓取请求                .build();    }    /**     * Get方式请求     *     * @param Url     */    public static String doGet(String Url) {        return doGet(Url, null, null);    }    /**     * Get方式请求     *     * @param Url     * @param map     请求参数     * @param headers     */    public static String doGet(String Url, Map<String, Object> map, Map<String, String> headers) {        String html = null;        String apiUrl = Url;        StringBuffer stringBuffer = new StringBuffer();        int flag = 0;                 //?标识符        /**----------设置请求参数------------*/        if (map!=null&&map.size() != 0) {            for (String mapName : map.keySet()) {                if (flag == 0) {                    stringBuffer.append("?");                } else {                    stringBuffer.append(mapName).append("=").append(map.get(mapName).toString());                    flag++;                }            }        }        apiUrl += stringBuffer;        HttpGet get = new HttpGet(apiUrl);        /**----------设置请求头信息-----------*/        if (headers!=null&&headers.size() != 0) {            for (String headerName : headers.keySet()) {                get.addHeader(headerName, headers.get(headerName));            }        }        CloseableHttpClient httpClient = HttpClients.createDefault();        try {            HttpResponse httpResponse = httpClient.execute(get);            HttpEntity entity = httpResponse.getEntity();            if (entity != null) {                html = EntityUtils.toString(entity,"utf-8");            }        } catch (IOException e) {            e.printStackTrace();        }        return html;    }    /**     * Post方式请求     *     * @param Url     * @param map     * @param headers     */    public static String doPost(String Url, Map<String, Object> map, Map<String, String> headers) {        String html = null;        String apiUrl = Url;        CloseableHttpClient httpClient = HttpClients.createDefault();        try {            if (map!=null&&map.size() != 0) {                HttpPost post = new HttpPost(apiUrl);                List<NameValuePair> list = new ArrayList<NameValuePair>(map.size());                /**----------设置请求参数------------*/                for (Map.Entry<String, Object> entry : map.entrySet()) {                    NameValuePair pair = new BasicNameValuePair(entry.getKey(), entry.getValue().toString());                    list.add(pair);                }                /**----------设置请求头信息----------*/                if(headers!=null&&headers.size()!=0) {                    for (Map.Entry<String, String> entry : headers.entrySet()) {                        post.addHeader(entry.getKey(),entry.getValue());                    }                }                post.setEntity(new UrlEncodedFormEntity(list, Charset.forName("utf-8")));                HttpResponse httpResponse = httpClient.execute(post);                HttpEntity entity = httpResponse.getEntity();                if (entity != null) {                    html = EntityUtils.toString(entity,"utf-8");                }            }        } catch(Exception e){            e.printStackTrace();        }        return html;    }    /**     * Post方式请求     *     * @param Url     * @param json     * @param json     */    public static String doPost(String Url,Object json,Map<String,String> headers){        String html = null;        try {            HttpPost post = new HttpPost(Url);            StringEntity stringEntity = new StringEntity(json.toString(),"utf-8");            stringEntity.setContentType("application/json");            stringEntity.setContentEncoding("utf-8");            post.setEntity(stringEntity);            CloseableHttpClient httpClient = HttpClients.createDefault();            HttpResponse httpResponse = httpClient.execute(post);            HttpEntity entity = httpResponse.getEntity();            html = EntityUtils.toString(entity,"utf-8");        } catch (Exception e) {            e.printStackTrace();        }        return html;    }    /**     *  创建SSL连接     *  解决https问题     *     */    public static SSLConnectionSocketFactory createSSLConnectionSocketFactory(){        SSLConnectionSocketFactory factory = null;        try {            SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {                public boolean isTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {                    return false;                }            }).build();            factory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);        } catch (Exception e) {            e.printStackTrace();        }        return  factory;    }}
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